You can get a sense of the kind of things people write from the BeforeIdiewall Twitter page. They range from the very aspirational ("inspire change") to the practical ("lose those 10 kilos") to the just fun ("kiss Ryan Gosling").

Chang encourages others to put up such walls. There's a "build your own" webpage of tips and guides here.

We wonder, of course, what Two-Way readers would say. Feel free to post your answers in the comments thread — and on Twitter @BeforeIdiewall.